填空题
Technically, any substance other than food that alters our
bodily or mental functioning is a drug. Many people mistaken S1. ______
believe the term drug refers only to some sort of medicine or an
illegal chemical taken with drug addicts. They don’t realize S2. ______
that familiar substances such as alcohol and tobacco are also not S3. ______
drugs. This is why the more neutral term substance is now used
by many physician and psychologists. The phrase "substance S4. ______
abuse" is often used instead of "drug abusive" to make clear S5. ______
that substances such as alcohol and tobacco can be just as
harmfully used as heroin and cocaine. S6. ______
We live in a society which the medicinal and social use S7. ______
of substances is pervasive: an aspirin to quite a headache, S8. ______
some wine to be sociable, coffee to get going in the morning,
a cigarette for the nervous. When do these socially acceptable S9. ______
and apparently constructive use of a substance become
misuses First of all, most substances taken in excess will
produce positive effects such as poisoning or intense perpetual S10. ______
distortions. Repeated use of a substance can also lead to
physical addiction or substance dependence.